EP0416438B1 - Reels splicing device - Google Patents

Reels splicing device Download PDF

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Publication number
EP0416438B1
EP0416438B1 EP90116448A EP90116448A EP0416438B1 EP 0416438 B1 EP0416438 B1 EP 0416438B1 EP 90116448 A EP90116448 A EP 90116448A EP 90116448 A EP90116448 A EP 90116448A EP 0416438 B1 EP0416438 B1 EP 0416438B1
Authority
EP
European Patent Office
Prior art keywords
rollers
cam
engagement
roller
casing portion
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
EP90116448A
Other languages
German (de)
French (fr)
Other versions
EP0416438A3 (en
EP0416438A2 (en
Inventor
Siegfried Knecht
Heinz Sonnenberg
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.)
Maschinenfabrik Alfred Schmermund GmbH and Co
Original Assignee
Maschinenfabrik Alfred Schmermund GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Alfred Schmermund GmbH and Co filed Critical Maschinenfabrik Alfred Schmermund GmbH and Co
Publication of EP0416438A2 publication Critical patent/EP0416438A2/en
Publication of EP0416438A3 publication Critical patent/EP0416438A3/en
Application granted granted Critical
Publication of EP0416438B1 publication Critical patent/EP0416438B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1873—Support arrangement of web rolls with two stationary roll supports carrying alternately the replacement and the expiring roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/1826—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll
    • B65H19/1836—Flying splicing, i.e. the expiring web moving during splicing contact taking place at a distance from the replacement roll the replacement web being accelerated or running prior to splicing contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4631—Adhesive tape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4634—Heat seal splice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/46414—Splicing effecting splice by nipping rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/46414—Splicing effecting splice by nipping rollers
    • B65H2301/464145—Splicing effecting splice by nipping rollers at least one of the rollers having additional feature, eg. knife or at least partly non-cylindrical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/54—Cigarette making
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/81—Packaging machines
    • 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
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing

Definitions

  • the invention relates to a bobbin splicing device for wrapping webs on packaging machines, in particular cigarette packaging machines, with two feed webs opening into a common feed line for one wrapping web each, a pair of rollers being arranged at the start of the common feed line, and with one knife each for both wrapping webs.
  • bobbins made of wrapping paper or film are often used for wrapping objects to be packaged, from which the webs are drawn off via feed rollers and sections are separated by means of a knife and fed to a packaging station.
  • This is the case, for example, with cigarette packers in which both the so-called inner paper and the outer transparent film and, in the case of soft packs, also the so-called outer paper are fed to a packaging station in this way.
  • a bobbin splicing device in which rotatable arms are provided, each of which carries a knife in the direction of rotation in front of a first section and furthermore has a second section which is offset by approximately 180 ° to the first, wherein at Rotating the arms engages a first and a second section with each other and clamp the sheathing web to be cut by the knife between them.
  • the object of the invention is therefore to create a bobbin splicing device of the type mentioned at the outset which enables an automatic connection of two envelope web ends.
  • a clamping strip cooperating with a support is provided for each envelope before entering the gap of the roller pair, that the clamping strips can be ventilated both manually and via cam drives coupled to the shafts of the rollers, that the rollers are each one Knife, in the direction of rotation in front of this a first elastic jacket section and offset by approximately 180 ° to this, wear a second jacket section, the first and second jacket sections protruding from the circumference of the roll and engaging with one another under pressure during the roll rotation and that the rollers are mounted so that alternately a first and a second jacket section meet.
  • Fig. 1 shows a front view of a bobbin splicing device.
  • Fig. 2 shows a detail of a view of the device of Fig. 1 from the right.
  • the device shown comprises a rear wall 1 and two front wall sections 3 connected to it via spacer bars 2.
  • the rear wall 1 is used to support two shafts 4, each via a bearing holder 5, which receives a roller bearing 6.
  • the two shafts 4 each carry a gear 7, the two gears 7 meshing with one another and a gear 7 being drivable via a drive pinion 8.
  • Each shaft 4 carries a change roller 9.
  • the diameter of the change rollers 9 is such that there is a wide gap between the two change rollers 9.
  • Each interchangeable roller 9 is provided with a stop 10 in the form of an axially extending cutout and also carries a knife 11, which runs somewhat obliquely to the surface line of the interchangeable roller 9, and two jacket sections 12 and 13 made of an elastic material such as rubber or the like, of which one in the direction of rotation 14 of the change rollers 9 in front of the knife 11 and the other offset by approximately 180 ° with respect to the former on the circumference of the change roller 9.
  • the elastic jacket sections 12, 13 have such a thickness that they come into engagement with one another under pressure during the rotation of the change rollers 9.
  • the two change rollers 9 are mounted offset from one another by 180 °.
  • two supports 15 which are inclined towards the roller gap and tangential to the outer circumference of the change rollers 9 formed by the supports 12, 13 are mounted between the rear wall 1 and the front wall sections 3.
  • Each support 15 interacts with a clamping bar 17 provided with a friction-increasing cushion 16 made of elastic material, which is fastened between two arms by two angle levers 18, which are rotatable about an axis 19 mounted in the rear wall 1 and the front wall section 3.
  • a helical spring 20 attached to the front wall section 3 engages in order to pretension the clamping strip 17 in the clamping position against the support 15.
  • a hand lever 21 is provided on the one hand, which sits on a shaft 22 which is in the rear wall 1 and in the each front wall section 3 is mounted and bears a curve 23 which cooperates with a stop 24 located here on the spring-biased arm of the angle lever 18 and designed here to be adjustable.
  • a hand lever 21 which is pivotable by more than about 120 ° from an approximately downward position to a somewhat oblique, substantially vertical position, this pivoting being limited by a pin 25 located on the respective front wall section 3, so that there are two stable positions for the hand lever 21, the terminal block 17 is vented via the curve 23 and the stop 24 engaged therewith.
  • a lever 26 sits on the shaft 19, which is connected to a roller 27 which rolls on a curve 28 which sits on the shaft 4 and has two diametrically opposite circumferentially projecting areas. By rotating the shaft 4, the terminal block 17 can therefore also be released via these projecting areas.
  • bobbin holders for the inner paper wrapping (but also for the transparent film or outer paper wrapping), which are appropriately equipped with wrapping lane bobbins.
  • the wrapping web 29 is threaded from a bobbin over the support plate 15 through the gap between the changing rollers 9 and further into the area of a packaging station, for example in the form of an enveloping revolver between corresponding rollers.
  • the wrapping web 30 from the other bobbin is only guided to the stop 10 of the second change roller 9 with the clamping bar 17 lifted by the hand lever 21, the stop 10 being located in the area of the roller gap.
  • the free end of the web 30 is provided with an adhesive strip 31 and fixed by turning the hand lever 21 through the clamping strip 17, while the opposite clamping strip 17 remains ventilated via the associated curve 28.
  • the web 29 is drawn off through the wide open nip of the rolls until the end of the running bobbin is reported by an appropriate control. This has the effect that the machine speed is reduced and the change process is initiated when a specified target speed is reached.
  • the change rollers 9 are switched on electronically and begin to transport both tracks 29, 30, since the previously unvented clamping strip 17 is also lifted by turning the curve 28.
  • the other clamping strip 17 begins to move into the unventilated position due to the rotation of the associated curve 28, in order to clamp the web 29 shortly thereafter.
  • the two tracks 29, 30 are between the jacket section 12 one interchangeable roller 9 and the jacket section 13 of the other interchangeable roller 9, so that the two webs 29, 30 are glued together under the pressure of the elastic jacket sections 12, 13 via the adhesive strips 32.
  • the knife 11 of the one interchangeable roller 9 engages with the web 29 and cuts it, so that the end of the web 29 located in the nip and leading to the packaging station is only connected to the start of the new web 30.
  • the empty bobbin can then be replaced and the new web can be threaded again up to the corresponding stop 10 with the application of an adhesive strip 31 and with clamping using the corresponding clamping strip 17, in order to be exchanged for this at the end of the web 30.
  • a further curve 32 is provided on the shaft 4, provided with two indentations offset by 180 ° to one another, which engages with a roller 33 which is at the free end of an arm an angle lever 34 is attached, which is also seated on the shaft 19. Furthermore, the other arm of the angle lever 34 is connected to the rear wall 1 via a helical spring 35 and is therefore preloaded accordingly.
  • the change rollers 9 are electronically disengaged when the next change position is reached and are fixed in the corresponding change starting position by the cam mechanism 32, 33, 34, 35.
  • the roller 33 is held in the respective depression of the curve 32.
  • the cam mechanism only needs to be provided for a change roller 9.
  • the supports 15 can additionally be provided with elastic, friction-increasing strips 36 adjacent to the pads 16.
  • one jacket section 12 or 13 can be designed as a heating element, while the other is elastic, so that the two envelope sheets to be spliced are brought into contact between an inelastic, metallic heating element and an elastic element and be welded. The welding then replaces the adhesive strip 31.

Landscapes

  • Replacement Of Web Rolls (AREA)

Description

Die Erfindung betrifft eine Bobinenspleißvorrichtung für Einhüllbahnen an Verpackungsmaschinen, insbesondere Zigarettenverpackungsmaschinen, mit zwei in eine gemeinsame Zuführstrecke mündenden Zuführstrecken für jeweils eine Einhüllbahn, wobei am Beginn der gemeinsamen Zuführstrecke ein Walzenpaar angeordnet ist, sowie mit jeweils einem Messer für beide Einhüllbahnen.The invention relates to a bobbin splicing device for wrapping webs on packaging machines, in particular cigarette packaging machines, with two feed webs opening into a common feed line for one wrapping web each, a pair of rollers being arranged at the start of the common feed line, and with one knife each for both wrapping webs.

In Verpackungsmaschinen werden häufig Bobinen aus Einhüllpapier oder -folie zum Einhüllen von zu verpackenden Gegenständen verwendet, von denen die Bahnen über Vorzugswalzen abgezogen und mittels eines Messers Abschnitte abgetrennt und einer Verpackungsstation zugeführt werden. Dies ist beispielsweise bei Zigarettenpackern der Fall, bei denen sowohl das sogenannte Innenpapier als auch die äußere Klarsichtfolie und bei Weichpackungen auch das sogenannte Außenpapier auf diese Weise einer Verpackungsstation zugeführt werden.In packaging machines, bobbins made of wrapping paper or film are often used for wrapping objects to be packaged, from which the webs are drawn off via feed rollers and sections are separated by means of a knife and fed to a packaging station. This is the case, for example, with cigarette packers in which both the so-called inner paper and the outer transparent film and, in the case of soft packs, also the so-called outer paper are fed to a packaging station in this way.

Zum Bobinenwechsel sind unterschiedliche Wechselvorrichtungen bekannt. So werden gemäß der DE-C-2 350 580 zwei in eine gemeinsame Zuführstrecke einmündende Einhüllbahnführungen jeweils mit einem Vorzugswalzenpaar versehen, während die Abtrenneinrichtung in der gemeinsamen Zuführstrecke liegt. Eine Wechselschalteinrichtung dient zum wechselweisen Betätigen der VorzugswalzenPaare. Jeweils eine um einen Schneidschritt schaltbare Querschneideeinrichtung mit einer Schrittschalteinrichtung ist vorgesehen, wobei die Wechselschalteinrichtung mit der jeweiligen Schrittschalteinrichtung derart gekoppelt ist, daß bei Umschaltung der Wechselschalteinrichtung jeweils die Schrittschalteinrichtung betätigt wird, die dem zuvor in Betrieb befindlichen Vorzugswalzenpaar zugeordnet ist. Hierdurch kann das Bahnende der Einhüllbahn vor Erreichen der gemeinsamen Zuführstrecke abgeschnitten werden, so daß Störungen durch einen in der gemeinsamen Zuführstrecke befindlichen Restabschnitt vermieden werden.Different changing devices are known for changing bobbins. According to DE-C-2 350 580, two wrapping web guides opening into a common feed path are each provided with a pair of feed rollers, while the separation device lies in the common feed path. A changeover switch is used to alternately actuate the pairs of preferred rollers. A cross cutting device with a step switching device, which can be switched by one cutting step, is provided, the changeover switching device being coupled to the respective step switching device in such a way that when the changeover switching device is switched over, the step switching device which is assigned to the pair of feed rollers previously in operation is actuated. As a result, the end of the web of the envelope can be reached before be cut off the common feed path, so that interference from a remaining section located in the common feed path can be avoided.

Jedoch treten generell bei einem Bobinenwechsel, bei dem sich ein freies Bahnende in die gemeinsame Zuführstrecke einfädeln muß, häufiger Störungen auf, so daß ein Spleißen oder Verbinden eines Endes der alten Bahn mit dem Anfang einer neuen Bahn zu bevorzugen ist. Derartiges jedoch manuell vorzunehmen, würde bedeuten, daß die Verpackungsmaschine relativ lange angehalten werden müßte.However, in general, disturbances occur more frequently when changing the bobbin, in which a free end of the web has to thread itself into the common feed path, so that splicing or connecting one end of the old web to the start of a new web is preferred. However, to do this manually would mean that the packaging machine would have to be stopped for a relatively long time.

Generell ist es ferner aus der DE-B-1 141 848 bei einer Bobinenspleißvorrichtung bekannt, für jede Einhüllbahn eine mit einem Auflager zusammenwirkende Klemmleiste vorzusehen, welche vor dem Eintritt in den zwischen den Walzen befindlichen Spalt vorgesehen ist, die mit einem Klemmsteg die Einhüllbahn in eine entsprechende Nut drückt.In general, it is also known from DE-B-1 141 848 for a bobbin splicing device to provide a clamping strip which interacts with a support for each wrapping web and which is provided before entry into the gap between the rollers which, with a clamping web, the wrapping web into presses a corresponding groove.

Bei der in der DE-B-1 511 791 beschriebenen Spleißvorrichtung sind separate Messer für jede Einhüllbahn, walzensegmentförmige elastische Druckstücke, die Ausbildung der Druckstücke als Schweißeinrichtung, Anschläge für das noch freie Ende der neuen Bahn und Kurvengetriebe bekannt.In the splicing device described in DE-B-1 511 791, separate knives for each enveloping path, roller segment-shaped elastic pressure pieces, the design of the pressure pieces as a welding device, stops for the still free end of the new path and cam mechanisms are known.

Schließlich ist aus der FR-A-2 364 176 eine Bobinenspleißvorrichtung bekannt, bei der drehbare Arme vorgesehen sind, die jeweils in Drehrichtung vor einem ersten Abschnitt ein Messer tragen sowie ferner einen zweiten, zum ersten um etwa 180° versetzten Abschnitt aufweisen, wobei beim Drehen der Arme jeweils ein erster und ein zweiter Abschnitt miteinander in Eingriff gelangen und die vom Messer zu durchtrennende Einhüllbahn zwischen sich einklemmen.Finally, from FR-A-2 364 176 a bobbin splicing device is known, in which rotatable arms are provided, each of which carries a knife in the direction of rotation in front of a first section and furthermore has a second section which is offset by approximately 180 ° to the first, wherein at Rotating the arms engages a first and a second section with each other and clamp the sheathing web to be cut by the knife between them.

Aufgabe der Erfindung ist es daher, eine Bobinenspleißvorrichtung der eingangs genannten Art zu schaffen, die ein automatisches Verbinden zweier Einhüllbahnenden ermöglicht.The object of the invention is therefore to create a bobbin splicing device of the type mentioned at the outset which enables an automatic connection of two envelope web ends.

Diese Aufgabe wird dadurch gelöst, daß für jede Einhüllbahn eine mit einer Auflage zusammenwirkende Klemmleiste vor dem Eintritt in den Spalt des Walzenpaars vorgesehen ist, daß die Klemmleisten sowohl manuell als auch über mit den Wellen der Walzen gekoppelte Kurvengetriebe lüftbar sind,daß die Walzen je ein Messer, in Drehrichtung vor diesem einen ersten elastischen Mantelabschnitt und um etwa 180° versetzt hierzu einen zweiten Mantelabschnitt tragen, wobei die ersten ünd zweiten Mantelabschnitte gegenüber dem Walzenumfang vorstehen und bei der Walzendrehung miteinander unter Druck in Eingriff gelangen und daß die Walzen so montiert sind, daß abwechselnd jeweils ein erster und ein zweiter Mantelabschnitt zusammentreffen.This object is achieved in that a clamping strip cooperating with a support is provided for each envelope before entering the gap of the roller pair, that the clamping strips can be ventilated both manually and via cam drives coupled to the shafts of the rollers, that the rollers are each one Knife, in the direction of rotation in front of this a first elastic jacket section and offset by approximately 180 ° to this, wear a second jacket section, the first and second jacket sections protruding from the circumference of the roll and engaging with one another under pressure during the roll rotation and that the rollers are mounted so that alternately a first and a second jacket section meet.

Hierbei wird über ein Wechselwalzenpaar das mit einem Klebestreifen versehene Ende einer vollen Bobine mit dem Ende einer im wesentlichen leeren Bobine unter gleichzeitigem Durchtrennen der von der praktisch leeren Bobine kommenden Bahn verklebt, so daß die Einhüllbahn immer in der gemeinsamen Zuführstrecke eingefädelt bleibt.In this case, the end of a full bobbin, which is provided with an adhesive strip, is glued to a pair of interchangeable rollers with the end of a substantially empty bobbin, at the same time severing the web coming from the practically empty bobbin, so that the wrapping web always remains threaded in the common feed path.

Weitere Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung und den Unteransprüchen zu entnehmen.Further refinements of the invention can be found in the following description and the subclaims.

Die Erfindung wird nachstehend anhand des in den beigefügten Abbildungen dargestellten Ausführungsbeispiels näher erläutert.The invention is explained below with reference to the embodiment shown in the accompanying figures.

Fig. 1 zeigt eine Frontansicht einer Bobinenspleißvorrichtung.Fig. 1 shows a front view of a bobbin splicing device.

Fig. 2 zeigt ausschnittweise eine Ansicht der Vorrichtung von Fig. 1 von rechts.Fig. 2 shows a detail of a view of the device of Fig. 1 from the right.

Die dargestellte Vorrichtung umfaßt eine Rückwand 1 und zwei hiermit über Distanzstäbe 2 verbundene Frontwandabschnitte 3. Die Rückwand 1 dient zur Lagerung von zwei Wellen 4 jeweils über einen Lagerhalter 5, der ein Wälzlager 6 aufnimmt. Die beiden Wellen 4 tragen jeweils ein Zahnrad 7, wobei die beiden Zahnräder 7 miteinander kämmen und ein Zahnrad 7 über ein Antriebsritzel 8 antreibbar ist.The device shown comprises a rear wall 1 and two front wall sections 3 connected to it via spacer bars 2. The rear wall 1 is used to support two shafts 4, each via a bearing holder 5, which receives a roller bearing 6. The two shafts 4 each carry a gear 7, the two gears 7 meshing with one another and a gear 7 being drivable via a drive pinion 8.

Jede Welle 4 trägt eine Wechselwalze 9. Der Durchmesser der Wechselwalzen 9 ist derart, daß sich ein breiter Spalt zwischen den beiden Wechselwalzen 9 befindet. Jede Wechselwalze 9 ist mit einem Anschlag 10 in Form eines sich axial erstreckenden Ausschnittes versehen und trägt ferner ein etwas schräg zur Mantellinie der Wechselwalze 9 verlaufendes Messer 11 sowie zwei Mantelabschnitte 12 und 13 aus einem elastischen Material wie Gummi o.dgl., von denen sich der eine in Drehrichtung 14 der Wechselwalzen 9 vor dem Messer 11 und der andere um etwa 180° gegenüber dem ersteren versetzt am Umfang der Wechselwalze 9 befindet. Die elastischen Mantelabschnitte 12, 13 haben eine solche Stärke, daß sie beim Umlauf der Wechselwalzen 9 miteinander unter Druck in Eingriff gelangen. Die beiden Wechselwalzen 9 sind um 180° zueinander versetzt montiert.Each shaft 4 carries a change roller 9. The diameter of the change rollers 9 is such that there is a wide gap between the two change rollers 9. Each interchangeable roller 9 is provided with a stop 10 in the form of an axially extending cutout and also carries a knife 11, which runs somewhat obliquely to the surface line of the interchangeable roller 9, and two jacket sections 12 and 13 made of an elastic material such as rubber or the like, of which one in the direction of rotation 14 of the change rollers 9 in front of the knife 11 and the other offset by approximately 180 ° with respect to the former on the circumference of the change roller 9. The elastic jacket sections 12, 13 have such a thickness that they come into engagement with one another under pressure during the rotation of the change rollers 9. The two change rollers 9 are mounted offset from one another by 180 °.

Oberhalb der beiden Wechselwalzen 9 sind zwei zum Walzenspalt hin geneigte, tangential zu dem von den Auflagen 12, 13 gebildeten Außenumfang der Wechselwalzen 9 verlaufende Auflagen 15 zwischen der Rückwand 1 und den Frontwandabschnitten 3 montiert. Mit jeder Auflage 15 wirkt eine mit einem reibungserhöhenden Polster 16 aus elastischem Material versehene Klemmleiste 17 zusammen, die zwischen zwei Armen von zwei Winkelhebeln 18, die um eine in der Rückwand 1 und dem Frontwandabschnitt 3 gelagerten Achse 19 drehbar sind, befestigt ist. Am freien Ende eines der anderen Arme der Winkelhebel 18 greift eine an dem Frontwandabschnitt 3 befestigte Schraubenfeder 20 an, um die Klemmleiste 17 in Klemmstellung gegen die Auflage 15 vorzuspannen.Above the two change rollers 9, two supports 15 which are inclined towards the roller gap and tangential to the outer circumference of the change rollers 9 formed by the supports 12, 13 are mounted between the rear wall 1 and the front wall sections 3. Each support 15 interacts with a clamping bar 17 provided with a friction-increasing cushion 16 made of elastic material, which is fastened between two arms by two angle levers 18, which are rotatable about an axis 19 mounted in the rear wall 1 and the front wall section 3. At the free end of one of the other arms of the angle lever 18, a helical spring 20 attached to the front wall section 3 engages in order to pretension the clamping strip 17 in the clamping position against the support 15.

Um die Klemmleiste 17 lüften zu können, ist einerseits ein Handhebel 21 vorgesehen, der auf einer Welle 22 sitzt, die in der Rückwand 1 und in dem jeweiligen Frontwandabschnitt 3 gelagert ist und eine Kurve 23 trägt, die mit einem an dem federvorgespannten Arm des Winkelhebels 18 befindlichen, hier verstellbar ausgebildeten Anschlag 24 zusammenwirkt. Durch Drehung des Handhebels 21, der um mehr als etwa 120° aus einer etwa abwärts gerichteten Stellung in eine etwas schräg gerichtete, im wesentlichen vertikale Stellung schwenkbar ist, wobei dieses Schwenken durch einen an dem jeweiligen Frontwandabschnitt 3 befindlichen Stift 25 begrenzt wird, so daß sich zwei stabile Lagen für den Handhebel 21 ergeben, wird die Klemmleiste 17 über die Kurve 23 und den damit in Eingriff stehenden Anschlag 24 abgelüftet.In order to be able to vent the terminal strip 17, a hand lever 21 is provided on the one hand, which sits on a shaft 22 which is in the rear wall 1 and in the each front wall section 3 is mounted and bears a curve 23 which cooperates with a stop 24 located here on the spring-biased arm of the angle lever 18 and designed here to be adjustable. By turning the hand lever 21, which is pivotable by more than about 120 ° from an approximately downward position to a somewhat oblique, substantially vertical position, this pivoting being limited by a pin 25 located on the respective front wall section 3, so that there are two stable positions for the hand lever 21, the terminal block 17 is vented via the curve 23 and the stop 24 engaged therewith.

Ferner sitzt auf der Welle 19 ein Hebel 26, der mit einer Rolle 27 verbunden ist, die auf einer Kurve 28 abrollt, die auf der Welle 4 sitzt und zwei einander diametral gegenüberliegende umfangsmäßig vorspringende Bereiche besitzt. Durch Drehung der Welle 4 kann daher die Klemmleiste 17 ebenfalls über diese vorspringenden Bereiche gelüftet werden.Furthermore, a lever 26 sits on the shaft 19, which is connected to a roller 27 which rolls on a curve 28 which sits on the shaft 4 and has two diametrically opposite circumferentially projecting areas. By rotating the shaft 4, the terminal block 17 can therefore also be released via these projecting areas.

Bei Zigarettenpackern gibt es beispielsweise für die Innenpapierumhüllung (aber auch für die Klarsichtfolien- oder die Außenpapierumhüllung) zwei Bobinenhalter, die entsprechend mit Einhüllbahnbobinen bestückt werden. Von einer Bobine wird die Einhüllbahn 29 bei abgelüfteter Klemmleiste 17 über das Auflageblech 15 durch den Spalt zwischen den Wechselwalzen 9 und weiter bis in den Bereich einer Verpackungsstation etwa in Form eines Umhüllrevolvers zwischen entsprechenden Rollen hindurch eingefädelt. Die Einhüllbahn 30 von der anderen Bobine wird dagegen nur an den Anschlag 10 der zweiten Wechselwalze 9 bei durch den Handhebel 21 gelüfteter Klemmleiste 17 geführt, wobei sich der Anschlag 10 im Bereich des Walzenspaltes befindet. Das freie Ende der Bahn 30 wird mit einem Klebestreifen 31 versehen und durch Umlegen des Handhebels 21 durch die Klemmleiste 17 fixiert, während die gegenüberliegende Klemmleiste 17 über die zugeordnete Kurve 28 gelüftet bleibt. Beim Betrieb des Zigarettenpackers wird die Bahn 29 durch den weit offenen Walzenspalt hindurch abgezogen, bis das Ende der laufenden Bobine über eine enstprechende Kontrolle gemeldet wird. Dies bewirkt, daß die Maschinendrehzahl verringert und beim Erreichen einer vorgesehenen Solldrehzahl der Wechselvorgang eingeleitet wird.In the case of cigarette packers, for example, there are two bobbin holders for the inner paper wrapping (but also for the transparent film or outer paper wrapping), which are appropriately equipped with wrapping lane bobbins. When the clamping strip 17 is vented, the wrapping web 29 is threaded from a bobbin over the support plate 15 through the gap between the changing rollers 9 and further into the area of a packaging station, for example in the form of an enveloping revolver between corresponding rollers. The wrapping web 30 from the other bobbin, on the other hand, is only guided to the stop 10 of the second change roller 9 with the clamping bar 17 lifted by the hand lever 21, the stop 10 being located in the area of the roller gap. The free end of the web 30 is provided with an adhesive strip 31 and fixed by turning the hand lever 21 through the clamping strip 17, while the opposite clamping strip 17 remains ventilated via the associated curve 28. During operation of the cigarette packer, the web 29 is drawn off through the wide open nip of the rolls until the end of the running bobbin is reported by an appropriate control. This has the effect that the machine speed is reduced and the change process is initiated when a specified target speed is reached.

Hierzu werden die Wechselwalzen 9 elektronisch zugeschaltet und beginnen den Transport beider Bahnen 29, 30, da durch Drehung der Kurve 28 die bisher ungelüftete Klemmleiste 17 ebenfalls gelüftet wird. Gleichzeitig beginnt sich die andere Klemmleiste 17 infolge Drehung der zugehörigen Kurve 28 in die ungelüftete Stellung zu bewegen, um kurz darauf die Bahn 29 festzuklemmen. In diesem Moment sind die beiden Bahnen 29, 30 zwischen dem Mantelabschnitt 12 der einen Wechselwalze 9 und dem Mantelabschnitt 13 der anderen Wechselwalze 9 eingeklemmt, so daß die beiden Bahnen 29, 30 unter dem Druck der elastischen Mantelabschnitte 12, 13 über den Klebestreifen 32 miteinander verklebt werden. Außerdem gelangt das Messer 11 der einen Wechselwalze 9 mit der Bahn 29 in Eingriff und trennt diese durch, so daß das im Walzenspalt befindliche, zur Verpackungsstation führende Ende der Bahn 29 nur noch mit dem Anfang der neuen Bahn 30 verbunden ist. Die leere Bobine kann dann ersetzt und die neue Bahn wieder bis zum entsprechenden Anschlag 10 unter Anbringung eines Klebestreifens 31 und unter Festklemmen über die entsprechende Klemmleiste 17 eingefädelt werden, um am Ende der Bahn 30 gegen diese ausgewechselt zu werden.For this purpose, the change rollers 9 are switched on electronically and begin to transport both tracks 29, 30, since the previously unvented clamping strip 17 is also lifted by turning the curve 28. At the same time, the other clamping strip 17 begins to move into the unventilated position due to the rotation of the associated curve 28, in order to clamp the web 29 shortly thereafter. At this moment, the two tracks 29, 30 are between the jacket section 12 one interchangeable roller 9 and the jacket section 13 of the other interchangeable roller 9, so that the two webs 29, 30 are glued together under the pressure of the elastic jacket sections 12, 13 via the adhesive strips 32. In addition, the knife 11 of the one interchangeable roller 9 engages with the web 29 and cuts it, so that the end of the web 29 located in the nip and leading to the packaging station is only connected to the start of the new web 30. The empty bobbin can then be replaced and the new web can be threaded again up to the corresponding stop 10 with the application of an adhesive strip 31 and with clamping using the corresponding clamping strip 17, in order to be exchanged for this at the end of the web 30.

Damit die beiden Wechselwalzen 9 und die Klemmleisten 17 immer ihre Wechselausgangsstellung einnehmen, ist auf der Welle 4 eine weitere, mit zwei um 180° zueinander winkelversetzte Einsenkungen versehene Kurve 32 angeordnet, die mit einer Rolle 33 in Eingriff steht, die am freien Ende eines Arms eines Winkelhebels 34 befestigt ist, der ebenfalls auf der Welle 19 sitzt. Ferner ist der andere Arm des Winkelhebels 34 über eine Schraubenfeder 35 mit der Rückwand 1 verbunden und daher entsprechend vorgespannt. Wenn der Wechselvorgang stattgefunden hat, werden die Wechselwalzen 9 bei Erreichen der nächsten Wechselstellung elektronisch ausgekuppelt und durch das Kurvengetriebe 32, 33, 34, 35 in der entsprechenden Wechselausgangsstellung fixiert. Infolge der Federvorspannung wird die Rolle 33 hierbei in der jeweiligen Einsenkung der Kurve 32 gehalten. Das Kurvengetriebe braucht nur für eine Wechselwalze 9 vorgesehen zu werden.So that the two interchangeable rollers 9 and the clamping strips 17 always assume their interchangeable starting position, a further curve 32 is provided on the shaft 4, provided with two indentations offset by 180 ° to one another, which engages with a roller 33 which is at the free end of an arm an angle lever 34 is attached, which is also seated on the shaft 19. Furthermore, the other arm of the angle lever 34 is connected to the rear wall 1 via a helical spring 35 and is therefore preloaded accordingly. When the change process has taken place, the change rollers 9 are electronically disengaged when the next change position is reached and are fixed in the corresponding change starting position by the cam mechanism 32, 33, 34, 35. As a result of the spring preload, the roller 33 is held in the respective depression of the curve 32. The cam mechanism only needs to be provided for a change roller 9.

Zur Verbesserung der Klemmung können die Auflagen 15 zusätzlich mit elastischen, reibungserhöhenden Streifen 36 benachbart zu den Polstern 16 versehen sein.To improve the clamping, the supports 15 can additionally be provided with elastic, friction-increasing strips 36 adjacent to the pads 16.

Wenn die anzuspleißenden Einhüllbahnen aus miteinander verschweißbarem Material bestehen, kann jeweils ein Mantelabschnitt 12 bzw. 13 als Heizelement ausgebildet sein, während der andere elastisch ist, so daß die beiden anzuspleißenden Einhüllbahnen zwischen jeweils einem unelastischen, metallischen Heizelement und einem elastische Element miteinander in Berührung gebracht und verschweißt werden. Das Verschweißen ersetzt dann den Klebestreifen 31.If the envelope sheets to be spliced are made of weldable material, one jacket section 12 or 13 can be designed as a heating element, while the other is elastic, so that the two envelope sheets to be spliced are brought into contact between an inelastic, metallic heating element and an elastic element and be welded. The welding then replaces the adhesive strip 31.

Claims (13)

  1. Reel-splicing apparatus for wrapping webs on packaging machines, especially cigarette-packaging machines, with two feed stages opening into a common feed stage and each for one wrapping web (29, 30), a pair of rollers (9) being arranged at the start of the common feed stage, and with a knife (11) for each of the two wrapping webs, characterized in that a clamping strip (17) cooperating with a support (15) is provided, for each wrapping web (29, 30), in front of the entry into the nip of the pair of rollers (9), in that the clamping strips (17) can be eased both manually and via cam mechanisms coupled to the shafts (4) of the rollers (9), in that the rollers (9) each carry a knife (11), in front of the latter in the direction of rotation a first elastic casing portion (12) and, offset at approximately 180° thereto, a second casing portion (13), the first and second casing portions (12, 13) projecting relative to the roller circumference and, during the rotation of the rollers, coming into engagement with one another under pressure, and in that the rollers (9) are mounted in such a way that a first and a second casing portion respectively meet alternately in each case.
  2. Apparatus according to Claim 1, characterized in that the clamping strip (17) is connected to at least one angle lever (18) which is pivotable counter to spring prestress.
  3. Apparatus according to Claim 2, characterized in that a hand lever (21) is pivotable about an axle (22) carrying a cam (23), the cam (23) engaging on the spring-prestressed arm of the angle lever (18).
  4. Apparatus according to one of Claims 1 to 3, characterized in that the cam mechanisms each comprise in each case a cam disc (28) which is seated on the shaft (4) of the respective roller (9), the cam discs (28) being mounted relative to one another in a similar way to the rollers (9) and easing the clamping strips (17) in two positions offset at 180°.
  5. Apparatus according to Claim 4, characterized in that a roll (27) in engagement with the cam disc (28) is in engagement with the angle lever (18) via a crank (26).
  6. Apparatus according to one of Claims 1 to 5, characterized in that each roller (9) has a stop (10) which extends along a generatrix and is intended for the respective wrapping web and which, in the initial changing position, is located in the region of the nip.
  7. Apparatus according to one of Claims 1 to 6, characterized in that there are fastened on the shafts (4) of the rollers (9) gearwheels (7) which are in engagement with one another and one of which is in engagement with a driving pinion (8).
  8. Apparatus according to one of Claims 1 to 7, characterized in that the clamping strip (17) is provided on the press-down side with an elastic pad (16).
  9. Apparatus according to Claim 8, characterized in that the support (15) is provided with an elastic strip (36) corresponding to the pad (16).
  10. Apparatus according to one of Claims 1 to 9, characterized in that there is coupled to the shaft (4) of at least one roller (9) a cam mechanism (32 to 35) having a spring-prestressed member (34) which prestresses the roller (4) and the associated clamping strip (17) into an initial changing position.
  11. Apparatus according to Claim 10, characterized in that the cam disc (32) of the cam mechanism (32 to 35) has two indentations offset at 180° and corresponding to the two initial changing positions.
  12. Apparatus according to one of Claims 1 to 11, characterized in that the second casing portion (13), which can be brought into engagement with the first elastic casing portion (12), is likewise elastic.
  13. Apparatus according to one of Claims 1 to 12, characterized in that the second casing portion (13), which can be brought into engagement with the first elastic casing portion (12), is designed as a heating element for welding the wrapping webs together.
EP90116448A 1989-09-08 1990-08-28 Reels splicing device Expired - Lifetime EP0416438B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3929981A DE3929981C1 (en) 1989-09-08 1989-09-08
DE3929981 1989-09-08

Publications (3)

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EP0416438A2 EP0416438A2 (en) 1991-03-13
EP0416438A3 EP0416438A3 (en) 1991-07-24
EP0416438B1 true EP0416438B1 (en) 1994-02-16

Family

ID=6388980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90116448A Expired - Lifetime EP0416438B1 (en) 1989-09-08 1990-08-28 Reels splicing device

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Country Link
US (1) US5131593A (en)
EP (1) EP0416438B1 (en)
JP (1) JPH03256821A (en)
CN (1) CN1021959C (en)
DE (2) DE3929981C1 (en)
RU (1) RU2014254C1 (en)

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ES2400892B1 (en) * 2011-05-10 2014-09-10 Volpak, S.A.U. "CONTINUOUS BAND PACKING DEVICE"   
CN103224156A (en) * 2013-05-25 2013-07-31 昆明鼎承科技有限公司 Strip direct splicing device
CN104249946A (en) * 2013-06-26 2014-12-31 达和机械（昆山）有限公司 Automatic packaging material sustaining device of packaging machine
KR102479736B1 (en) * 2014-10-14 2022-12-22 필립모리스 프로덕츠 에스.에이. Apparatus and method for splicing flat continuous material
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CN106743827B (en) * 2016-12-31 2018-08-31 浙江茉织华印刷股份有限公司 One kind not shutting down paper feeding device
CN109160340B (en) * 2018-11-13 2020-06-23 河南中烟工业有限责任公司 Glue-free splicing device and glue-free splicing method for paper tape
CN109677972B (en) * 2019-01-14 2024-07-30 无锡先导智能装备股份有限公司 Reel changing mechanism
CN109530169B (en) * 2019-01-21 2024-07-19 深圳市南科燃料电池有限公司 Coating machine coating substrate equipment of plugging into

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Also Published As

Publication number Publication date
RU2014254C1 (en) 1994-06-15
DE3929981C1 (en) 1991-03-07
JPH03256821A (en) 1991-11-15
EP0416438A3 (en) 1991-07-24
CN1021959C (en) 1993-09-01
US5131593A (en) 1992-07-21
DE59004596D1 (en) 1994-03-24
EP0416438A2 (en) 1991-03-13
CN1050007A (en) 1991-03-20

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