EP0071736B2 - Packaging device for forming cut sheets and feeding the same to a packaging station - Google Patents

Packaging device for forming cut sheets and feeding the same to a packaging station Download PDF

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Publication number
EP0071736B2
EP0071736B2 EP82105631A EP82105631A EP0071736B2 EP 0071736 B2 EP0071736 B2 EP 0071736B2 EP 82105631 A EP82105631 A EP 82105631A EP 82105631 A EP82105631 A EP 82105631A EP 0071736 B2 EP0071736 B2 EP 0071736B2
Authority
EP
European Patent Office
Prior art keywords
suction
guide roller
blanks
blank
region
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
EP82105631A
Other languages
German (de)
French (fr)
Other versions
EP0071736A1 (en
EP0071736B1 (en
Inventor
Heinz Focke
Kurt Liedtke
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.)
Focke and Co GmbH and Co KG
Original Assignee
Focke and Co GmbH and Co KG
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Filing date
Publication date
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Application filed by Focke and Co GmbH and Co KG filed Critical Focke and Co GmbH and Co KG
Publication of EP0071736A1 publication Critical patent/EP0071736A1/en
Application granted granted Critical
Publication of EP0071736B1 publication Critical patent/EP0071736B1/en
Publication of EP0071736B2 publication Critical patent/EP0071736B2/en
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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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/02—Feeding sheets or wrapper blanks
    • B65B41/04—Feeding sheets or wrapper blanks by grippers
    • B65B41/06—Feeding sheets or wrapper blanks by grippers by suction-operated grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/361—Means for producing, distributing or controlling suction distributing vacuum from stationary element to movable element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/361—Means for producing, distributing or controlling suction distributing vacuum from stationary element to movable element
    • B65H2406/3612—Means for producing, distributing or controlling suction distributing vacuum from stationary element to movable element involving a shoe in sliding contact with flanges of a rotating element
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/207—By suction means
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096—Means to move product out of contact with tool
    • Y10T83/2098—With means to effect subsequent conveying or guiding
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2183—Product mover including gripper means
    • Y10T83/2185—Suction gripper
    • 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
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6579—With means to press work to work-carrier

Definitions

  • the invention relates to a packaging device for producing blanks by separating them from a material web and feeding them to a packaging station by means of a blanking conveyor, which consists of peripheral, lateral, upright perforated belts with a conveying strand under vacuum through rear suction chambers for the linear transport of the blanks , and which is preceded by a suction drum, in the area of which the blanks can be separated from the material web.
  • a blanking conveyor which consists of peripheral, lateral, upright perforated belts with a conveying strand under vacuum through rear suction chambers for the linear transport of the blanks , and which is preceded by a suction drum, in the area of which the blanks can be separated from the material web.
  • DE-A 1 586 120 describes a first solution to this problem.
  • the material web is fed to a suction conveyor drum, that is to say a drum on whose outer lateral surface suction bores open.
  • a suction conveyor drum On this suction conveyor drum, blanks are separated from the material web by a rotating cutting knife.
  • the individual blanks are then detached from the suction conveyor drum by deflecting fingers and transferred to suction conveyor belts, which also fix the blank by suction.
  • the object (pack) can be moved between these suction conveyor belts, taking the cut that is slipped off the suction conveyor belts.
  • the disadvantage here is that the blank must be detached from the suction conveyor drum by deflecting fingers, ie it cannot be transferred directly from the suction conveyor drum to the suction conveyor belts.
  • suction fixation in the area of the transfer from the suction drum to the suction conveyor belts is interrupted, which considerably impairs the required guidance, so that there is a risk of disorderly conveying in this area.
  • blanks are removed from a blank magazine by a removal roller and fed to a gripper cylinder.
  • the blanks are gripped at a front edge in the conveying direction by pliers, transported along a pitch circle by rotating the gripper cylinder and then placed on suction belts of a conveyor.
  • the cuts are transferred to the suction belts in the area of a suction drum, which is also a deflection drum for the suction belts.
  • the suction belts can be supplied with suction air by the deflection drum.
  • GB-PS 967 491 deals with the transport of blanks in two staggered horizontal planes.
  • the blanks are transported by a belt conveyor designed as a suction belt, the blanks being fed in the region of a deflecting roller from an upper run to a lower run of the belt conveyor.
  • Upper run and lower run are provided with suction chambers which extend into the area of the deflection roller.
  • This device is not concerned with the context of the invention, namely that a blank is to be separated from a material web and to be transported tied up uninterruptedly until it is taken over by packs.
  • the object of the invention is to propose measures which ensure uninterrupted conveyance of the cut blanks until they are picked up by means of a pack or the like with a simple, reliable construction.
  • the suction drum is arranged in the region of an upper deflection roller for the perforated belts in such a way that the peripheral surface of the suction drum or the cut conveyed on it can be transferred directly to the peripheral surface of the deflecting roller of the perforated belts or to the latter itself.
  • two different conveyor systems namely a suction roller for performing the separating cut in the production of the blank on the one hand and perforated belts for conveying the blank to the packaging station on the other hand, are placed in such a spatial relationship that the blank separated on the suction drum starts immediately and without an intermediate conveyor which can be handed over to closely adjacent suction belts. This ensures an uninterrupted fixation of the blanks on the conveying elements acted upon by suction air.
  • the devices shown are part of a packaging machine, for example for the production of cigarette packs 10, and the cigarette packs 10 found predominantly on the market are provided with an outer wrapper, which in the present case consists of an inexpensive plastic film that is difficult to pack.
  • a blank 11 of the packaging material is kept ready in a plane transverse to the direction of transport of the cigarette pack 10 on a packing web 12, such that the blank 11 lies around the cigarette pack 10 in a U-shape as a result of the relative movement.
  • the cigarette pack provided in this way with a blank 11 is then fed into a folding turret 13, which carries out the further necessary folding of the blank 11 in a known manner.
  • the blanks 11 are separated one after the other from a continuously (or cyclically) supplied material web 14.
  • the conveyance of the same is effected by a pair of pull rollers 15, 16, which is mounted here above subsequent conveying members.
  • the material web 14 is transferred to an immediately adjacent, that is to say closely adjacent, axially parallel suction drum 17.
  • the blank 11 is separated from the subsequent material web 14 on the suction drum 17.
  • an approximately radially directed cutting knife 18 is inserted approximately radially into the suction drum 17 such that the outer cutting edge projects beyond the outer surface of the suction drum 17.
  • a rotating counter knife 19 With the help of a rotating counter knife 19, the cut is made at a predetermined, repeating interface, so that cuts of the same length are always cut off.
  • the above separating device can also be designed in a different way.
  • the circumferential suction drum 17 is equipped with radial suction bores 20, which open in several, preferably three suction rows 21 spaced apart from one another, on the lateral surface of the suction drum 17 and fix the material web 14 or the blank 11 when appropriately loaded with suction air.
  • the suction bores 20 of the three suction rows 21 are each connected to common, axially parallel suction channels 22 which lead to the axial end of the suction drum 17 and here temporarily connect to a suction groove 23 which is formed in a stationary distributor disk 24 mounted next to the suction drum 17 .
  • the suction groove 23 extends over the entire, approximately semicircular conveying area of the material web 14 or of the blank 11 on the suction drum 17.
  • a ventilation hole 25 separate from the suction groove 23 is expediently formed in the distributor disk 24 in the lower area. which facilitates the transfer of the blank 11 to a subsequent blank conveyor 26 as a result of venting the suction channels 22 and thus the suction bores 20 in this area.
  • This blank conveyor 26 transports the blank 11 in a straight line, namely in the vertical plane.
  • the blanking conveyor 26 rotates from two perforated belts 27 and 28 arranged at a distance from one another. These are guided over upper and lower deflection rollers 29 and 30.
  • the arrangement is such that the deflecting rollers 29 and 30 are arranged at approximately equal intervals on both sides, namely above and below, the packing web 12.
  • the perforated belts 27, 28 are acted upon by suction air in the region of a conveyor run 31, either through individual, elongated suction chambers 32 and 33 for each conveyor run 31 or through a common suction box 34 (FIGS. 6, 7 and 8).
  • the suction chambers 32, 33 are provided on the side facing the conveyor run 31 with openings or a continuous suction slot 35 which is covered by the conveyor run 31 of the perforated belts 27, 28.
  • the perforated belts 27, 28 are provided with suction holes 36, which enable the negative pressure through the suction chambers 32, 33 or the suction box 34 to take effect on the opposite side of the conveying strand 31, so that the blank 11 comes on during transport this is fixed.
  • the suction chambers 32 and 33 are formed in upright support elements 37, between which a recess 38 is formed for the passage of the cigarette pack 10. During this push-through movement, the blank 11 is pulled through the cigarette pack 10 from the conveyor runs 31 of the perforated belts 27, 28.
  • the perforated strips 27, 28 run in trough-like. Recesses 39 of the suction chambers 32, 33 and the suction box 34. The narrow depressions 39 are dimensioned such that the perforated strips 27, 28 running therein are approximately flush with the contact surface 40 facing the blank 11.
  • the suction holes 36 in the perforated bands 27, 28 and the suction slots 35 for the suction chambers 32, 33 are arranged offset inwards with respect to the longitudinal center planes of these parts.
  • the perforated belts 27, 28 are provided on the inner side facing the deflecting rollers 29 and 30 with transverse, rib-like elevations 41, through which perforated belts 27, 28 are formed like toothed belts.
  • At least the upper deflection roller 29 is equipped with corresponding recesses 42, into which the elevations 41 enter in a form-fitting manner. This ensures an exact, slip-free movement of the perforated belts 27, 28 with respect to the deflection rollers 29, 30.
  • the depressions 42 are formed in the region of recesses 43 of the deflecting rollers 29, 30. These recesses 43 or flat grooves are designed so that the perforated strips 27, 28 fit into this receptacle and are essentially flush with the lateral surface of at least the deflecting roller 29.
  • a suction hole 36 is arranged between each two elevations 41.
  • the present exemplary embodiments are designed in such a way that a continuous, uninterrupted fixation of the material web 14 and the product blank 11 is ensured by suction air at the conveying members involved, from the takeover of the material web 14 by the suction drum 17 to the delivery of the blank 11 to the cigarette pack.
  • the transfer of the blanks 11 formed on the suction drum 17 to the blank conveyor 26 is achieved in a special way.
  • the upper deflection roller 29 of the blank conveyor 26 is acted upon by suction air in the region of the lateral surface, at least in a circumferential region serving to convey the blank 11.
  • the suction air is fed to the blank 11 via the perforated belts 27, 28, so that the transport of the blank 11 in the region of the deflecting roller 29 already takes place decisively through the perforated belts 27, 28.
  • the deflection roller 29 consists of a hollow cylinder 44 which is rotatably mounted on a fixed support shaft 45. This also has the task of supplying the deflection roller 29 with vacuum.
  • the hollow cylinder 44 is equipped with radially directed suction bores 46 which each open in the area of the suction holes 36 of the perforated strips 27, 28 on the lateral surface of the hollow cylinder 44.
  • the suction bores 46 are connected to a vacuum system of the supporting axis 45, namely with a segment groove 47 which extends in the circumferential direction in the region of the suction bores 46. This is arranged and dimensioned such that the suction bore 46 is connected to the segment groove 47 during the transport area for the blank 11 are.
  • deflection roller 29, suction drum 17 and pull roller 16 are arranged one above the other in a common axis plane.
  • Suction drum 17 and deflection roller 29 are directly in operational engagement via gears 50, 51.
  • Another gear 52 drives the pull roller 16.
  • the suction drum 17 is supported on a continuous axis 53 at both ends.
  • the support axis 45 of the deflection roller 29 is supported on one side here.
  • the exemplary embodiment according to FIGS. 6 to 8 is in principle designed in the same way as that according to FIGS. 1 to 6.
  • the fixing of the blank 11 on the upper deflecting roller 29 with suction air takes place here in a different way.
  • the suction box 34 provided here is extended into the region of the deflecting roller 29, specifically by means of narrow suction segments 54, 55 which are designed in the shape of a circular arc and adjoin the suction box 34. These are here as relatively narrow, channel-like, namely, U-shaped air conveying elements in cross section.
  • the fixed suction segments 54, 55 extend in correspondingly designed and dimensioned circumferential grooves 56 and 57 of the deflecting roller 29. The dimensional differences are selected so that the deflecting roller 29 is freely rotatable relative to the suction segments 54, 55, the radially outer side of the suction segments 54 , 55 is open, thus forming a suction slot 58.
  • the suction elements 54 extend below the perforated strips 27, 28, namely in the area of the suction holes 36 thereof. Accordingly, analogously to the exemplary embodiment according to FIGS. 1 to 5, the perforated belts 27, 28 are also acted upon by suction air in the region of the deflecting roller 29, so that they can already fulfill their promoting and fixing function with respect to the cut here.
  • the blank is fixed and conveyed in the region of the deflecting roller 29.
  • the suction elements 55 are offset laterally, namely inwards, relative to the perforated bands 27, 28.
  • the suction segments 55 are essentially flush with the lateral surface of the deflecting roller 29, so that the suction slots 58 can act directly on the blank 11 here.
  • the conveying members 16, 17, 29 are here in the same or similar relative position to one another as in the previously explained exemplary embodiment.
  • the suction box 34 is designed analogously to the suction chambers 32, 33 with respect to the guidance of the perforated strips 27, 28.

Description

Die Erfindung betrifft eine Verpackungs-Vorrichtung zum Herstellen von Zuschnitten durch Abtrennen von einer Materialbahn und Zuführung derselben zu einer Verpackungsstation durch einen Zuschnittförderer, der aus umlaufenden, seitlichen, aufrechten Lochbändern mit einem durch rückseitig angeordnete Saugkammern unter Unterdruck stehenden Fördertrum zum geradlinigen Transport der Zuschnitte besteht, und dem eine Saugtrommel vorgeordnet ist, in deren Bereich die Zuschnitte von der Materialbahn abtrennbar sind.The invention relates to a packaging device for producing blanks by separating them from a material web and feeding them to a packaging station by means of a blanking conveyor, which consists of peripheral, lateral, upright perforated belts with a conveying strand under vacuum through rear suction chambers for the linear transport of the blanks , and which is preceded by a suction drum, in the area of which the blanks can be separated from the material web.

Für die Verarbeitung von (kostengünstigen) Verpackungsmaterialien mit "kritischen" Eigenschaften in der Verpackungstechnik sind besondere Maßnahmen erforderlich, um die Folien bzw. daraus hergestellte Zuschnitte während der Förderung ausreichend zu fixieren. Dabei kommt es darauf an, eine ununterbrochene Halterung sowohl der fortlaufenden Materialbahn als auch der von dieser abgetrennten Zuschnitte zu gewährleisten, bis diese um den zu verpackenden Gegenstand herumgelegt sind.For the processing of (inexpensive) packaging materials with "critical" properties in packaging technology, special measures are required in order to adequately fix the foils or blanks made therefrom during the conveyance. It is important to ensure an uninterrupted holding of both the continuous material web and the blanks separated therefrom until they are placed around the object to be packaged.

Eine erste Lösung dieses Problems beschreibt die DE-A 1 586 120. Die Materialbahn wird bei diesem Vorschlag einer Saugfördertrommel zugeführt, also einer Trommel, an deren äußerer Mantelfläche Saugbohrungen münden. Auf dieser Saugfördertrommel werden Zuschnitte durch ein umlaufendes Trennmesser von der Materialbahn abgetrennt. Die einzelnen Zuschnitte werden sodann durch Ablenkfinger von der Saugfördertrommel abgelöst und an Saugförderbänderübergeben, die den Zuschnitt ebenfalls durch Saugwirkung fixieren. Der Gegenstand (Packung) ist zwischen diesen Saugförderbändern hindurchbewegbar, und zwar unter Mitnahme des schlupfend von den Saugförderbändern abgezogenen Zuschnitts.DE-A 1 586 120 describes a first solution to this problem. In this proposal, the material web is fed to a suction conveyor drum, that is to say a drum on whose outer lateral surface suction bores open. On this suction conveyor drum, blanks are separated from the material web by a rotating cutting knife. The individual blanks are then detached from the suction conveyor drum by deflecting fingers and transferred to suction conveyor belts, which also fix the blank by suction. The object (pack) can be moved between these suction conveyor belts, taking the cut that is slipped off the suction conveyor belts.

Nachteilig ist hier, daß der Zuschnitt durch Ablenkfinger von der Saugfördertrommel abgelöst werden muß, also nicht unmittelbar von der Saugfördertrommel an die Saugförderbänder übergeben werden kann. Dadurch wird eine Saugfixierung im Bereich der Übergabe von der Saugtrommel zu den Saugförderbändern unterbrochen, was die erforderliche Führung erheblich beeinträchtigt, so daß die Gefahr einer ungeordneten Förderung in diesem Bereich besteht.The disadvantage here is that the blank must be detached from the suction conveyor drum by deflecting fingers, ie it cannot be transferred directly from the suction conveyor drum to the suction conveyor belts. As a result, suction fixation in the area of the transfer from the suction drum to the suction conveyor belts is interrupted, which considerably impairs the required guidance, so that there is a risk of disorderly conveying in this area.

Bei der FR-A2 204 375 werden Zuschnitte durch eine Entnahmewalze einem Zuschnittmagazin entnommen und einem Greiferzylinderzugeführt. Zu diesem Zweck werden die Zuschnitte an einem in Förderrichtung vorn liegenden Rand durch Zangen erfaßt, längs eines Teilkreises durch Drehen des Greiferzylinders transportiert und sodann an Saugbänder eines Förderers angelegt. Die Übergabe der Zuschnitte an die Saugbänder erfolgt im Bereich einer Saugtrommel, die zugleich Umlenktrommel für die Saugbänder ist. Dabei sind die Saugbänderdurch die Umlenktrommel mit Saugluft beaufschlagbar.In the FR-A2 204 375, blanks are removed from a blank magazine by a removal roller and fed to a gripper cylinder. For this purpose, the blanks are gripped at a front edge in the conveying direction by pliers, transported along a pitch circle by rotating the gripper cylinder and then placed on suction belts of a conveyor. The cuts are transferred to the suction belts in the area of a suction drum, which is also a deflection drum for the suction belts. The suction belts can be supplied with suction air by the deflection drum.

Da die Zuschnitte im Bereich des Greiferzylinders lediglich an der in Transportrichtung vorn liegenden Kante auf dem Greiferzylinder fixiert sind, ist es nur möglich, Zuschnitte aus einem relativ steifen Material zu fördern.Since the blanks in the area of the gripper cylinder are only fixed to the front edge of the gripper cylinder in the transport direction, it is only possible to convey blanks from a relatively rigid material.

Die GB-PS 967 491 befaßt sich mit dem Transport von Zuschnitten in zwei versetzten horizontalen Ebenen. Dabei werden die Zuschnitte von einem als Saugband ausgebildeten Bandförderer transportiert, wobei die Zuschnitte im Bereich einer Umlenkwalze von einem oberen Trum einem unteren Trum des Bandförderers zugeführt werden. Obertrum und Untertrum sind mit Saugkammern versehen, die sich bis in den Bereich der Umlenkwalze erstrecken. Diese Vorrichtung befaßt sich nicht mit den Zusammenhängen der Erfindung, nämlich damit daß ein Zuschnitt von einer Materialbahn abgetrennt und bis zur Übernahme durch Packungen ununterbrochen gefesselt transportiert werden soll.GB-PS 967 491 deals with the transport of blanks in two staggered horizontal planes. The blanks are transported by a belt conveyor designed as a suction belt, the blanks being fed in the region of a deflecting roller from an upper run to a lower run of the belt conveyor. Upper run and lower run are provided with suction chambers which extend into the area of the deflection roller. This device is not concerned with the context of the invention, namely that a blank is to be separated from a material web and to be transported tied up uninterruptedly until it is taken over by packs.

Ausgehend vom Stand der Technik der zuerst genannten DE-A 1 586 120 liegt der Erfindung die Aufgabe zugrunde, Maßnahmen vorzuschlagen, durch die eine ununterbrochene Förderung der abgetrennten Zuschnitte bis zurAufnahme derselben durch eine Packung oder dergleichen bei einfachem, funktionssicheren Aufbau gewährleistet ist.On the basis of the prior art of the first-mentioned DE-A 1 586 120, the object of the invention is to propose measures which ensure uninterrupted conveyance of the cut blanks until they are picked up by means of a pack or the like with a simple, reliable construction.

Diese Aufgabe wird gemäß einer ersten Ausführung der Erfindung durch die kennzeichnenden Merkmale des Patentanspruchs 1 und gemäß einer zweiten Ausführung der Erfindung durch die kennzeichnenden Merkmale des Patentanspruchs 6 gelöst.This object is achieved according to a first embodiment of the invention by the characterizing features of patent claim 1 and according to a second embodiment of the invention by the characterizing features of patent claim 6.

Dementsprechend ist die Saugtrommel im Bereich einer oberen Umlenkwalze für die Lochbänder derart angeordnet, daß die Umfangsfläche der Saugtrommel bzw. der auf dieser geförderte Zuschnitt unmittelbar an die Umfangsfläche der Umlenkwalze der Lochbänder bzw. an diese selbst übergeben werden kann. Dadurch ist erfindungsgemäß sichergestellt, daß die Umlenkwalze für die Lochbänder wenigstens in einem dem Transport des Zuschnitts dienenden Umfangsbereich mit Saugluft beaufschlagt ist.Accordingly, the suction drum is arranged in the region of an upper deflection roller for the perforated belts in such a way that the peripheral surface of the suction drum or the cut conveyed on it can be transferred directly to the peripheral surface of the deflecting roller of the perforated belts or to the latter itself. This ensures, according to the invention, that the deflecting roller for the perforated belts is acted upon by suction air at least in a peripheral region serving to transport the blank.

Bei der Erfindung werden demnach zwei unterschiedliche Fördersysteme, nämlich eine Saugwalze zur Durchführung des Trennschnitts bei der Herstellung des Zuschnitts einerseits und Lochbänderfürdie Förderung des Zuschnitts bis zurVerpackungsstation andererseits in eine solche räumliche Beziehung zueinander gesetzt, daß der auf der Saugtrommel abgetrennte Zuschnitt unmittelbar und ohne Zwischenförderer an die entsprechend eng benachbarten Saugbänder übergeben werden kann. Dadurch ist eine ununterbrochene Fixierung der Zuschnitte auf den durch Saugluft beaufschlagten Förderorganen gewährleistet.According to the invention, two different conveyor systems, namely a suction roller for performing the separating cut in the production of the blank on the one hand and perforated belts for conveying the blank to the packaging station on the other hand, are placed in such a spatial relationship that the blank separated on the suction drum starts immediately and without an intermediate conveyor which can be handed over to closely adjacent suction belts. This ensures an uninterrupted fixation of the blanks on the conveying elements acted upon by suction air.

Weitere Merkmale der Erfindung beziehen sich auf die Ausgestaltung der Saugtrommel, der Lochbänder sowie der Umlenkwalze derselben. Es wird diesbezüglich auf die Unteransprüche verwiesen.Further features of the invention relate to the design of the suction drum, the hole belts and the deflecting roller of the same. In this regard, reference is made to the subclaims.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen näher erläutert. Es zeigt

  • Fig.1 ein Ausführungsbeispiel der Vorrichtung in vereinfachter Seitenansicht, teilweise im Vertikalschnitt,
  • Fig. 2 eine um 90° versetzte Vorderansicht der Vorrichtung gemäß Fig. 1, ebenfalls teilweise im Vertikalschnitt,
  • Fig. 3 den oberen Bereich der Vorrichtung gemäß
  • Fig. 1 und 2 in Seitenansicht bzw. im Vertikalschnitt bei vergrößertem Maßstab,
  • Fig. 4 einen Horizontalschnitt durch die Vorrichtung im Bereich von Lochbändern und Saugkammern, in vergrößertem Maßstab,
  • Fig. 5 eine um 90° versetzte Vorderansicht zu der Einzelheit gemäß Fig. 3,
  • Fig. 6 eine Darstellung entsprechend Fig. 3 eines anderen Ausführungsbeispiels der Vorrichtung,
  • Fig. 7 eine um 90° versetzte Vorderansicht, teilweise im Schnitt, für das Ausführungsbeispiel gemäß Fig. 6,
  • Fig. 8 eine Darstellung entsprechend Fig. 7 eines modifizierten Ausführungsbeispiels der Vorrichtung,
Exemplary embodiments of the invention are explained in more detail below with reference to the drawings. It shows
  • 1 shows an embodiment of the device in a simplified side view, partially in vertical section,
  • 2 is a 90 ° front view of the device of FIG. 1, also partially in vertical section,
  • Fig. 3 shows the upper area of the device
  • 1 and 2 in side view or in vertical section on an enlarged scale,
  • 4 shows a horizontal section through the device in the region of perforated bands and suction chambers, on an enlarged scale,
  • 5 shows a front view offset by 90 ° to the detail according to FIG. 3,
  • 6 shows a representation corresponding to FIG. 3 of another embodiment of the device,
  • 7 is a 90 ° offset front view, partially in section, for the embodiment of FIG. 6,
  • 8 shows a representation corresponding to FIG. 7 of a modified exemplary embodiment of the device,

Die gezeigten Vorrichtungen sind Teil einer Verpackungsmaschine, beispielsweise für die Herstellung von Zigaretten-Packungen 10, die auf dem Markt überwiegend anzutreffenden Zigaretten-Packungen 10 werden mit einer Außenumhüllung versehen, die im vorliegenden Fall aus einer kostengünstigen, verpackungstechnisch schwierigen Kunststoffolie besteht. Ein Zuschnitt 11 des Verpackungsmaterials wird zu diesem Zweck in einer Ebene quer zur Transportrichtung der Zigaretten-Packung 10 auf einer Packungsbahn 12 bereitgehalten, derart, daß sich der Zuschnitt 11 U-förmig um die Zigaretten-Packung 10 infolge der Relativbewegung herumlegt. Die auf diese Weise mit einem Zuschnitt 11 versehene Zigaretten-Packung wird sodann in einen Faltrevolver 13 eingefördert, der die weiteren erforderlichen Faltungen des Zuschnitts 11 in bekannter Weise durchführt.The devices shown are part of a packaging machine, for example for the production of cigarette packs 10, and the cigarette packs 10 found predominantly on the market are provided with an outer wrapper, which in the present case consists of an inexpensive plastic film that is difficult to pack. For this purpose, a blank 11 of the packaging material is kept ready in a plane transverse to the direction of transport of the cigarette pack 10 on a packing web 12, such that the blank 11 lies around the cigarette pack 10 in a U-shape as a result of the relative movement. The cigarette pack provided in this way with a blank 11 is then fed into a folding turret 13, which carries out the further necessary folding of the blank 11 in a known manner.

Die Zuschnitte 11 werden nacheinander von einer fortlaufend (oder taktweise) zugeförderten Materialbahn 14 abgetrennt. Die Förderung derselben wird durch ein Paar von Zugwalzen 15, 16 bewirkt, welches hier oberhalb von nachfolgenden Förderorganen gelagert ist. Nach einer Förderung der Materialbahn 14 längs eines etwa halben Umfangs der einen Zugwalze 16 wird die Materialbahn 14 an eine unmittelbar anschließende, also eng benachbart liegende, achsparallele Saugtrommel 17 übergeben.The blanks 11 are separated one after the other from a continuously (or cyclically) supplied material web 14. The conveyance of the same is effected by a pair of pull rollers 15, 16, which is mounted here above subsequent conveying members. After the material web 14 has been conveyed along an approximately half circumference of the one drawing roller 16, the material web 14 is transferred to an immediately adjacent, that is to say closely adjacent, axially parallel suction drum 17.

Auf der Saugtrommel 17 wird derZuschnitt 11 von der nachfolgenden Materialbahn 14 abgetrennt. Bei dem vorliegenden Ausführungsbeispiel ist ein etwa radial gerichtetes Trennmesser 18 etwa radial in die Saugtrommel 17 eingelassen, derart, daß die außenliegende Schneidkante über die Mantelfläche der Saugtrommel 17 hinwegragt. Mit Hilfe eines umlaufenden Gegenmessers 19 erfolgt der Trennschnitt an vorgegebener, sich wiederholender Schnittstelle, so daß stets Zuschnitte von gleicher Länge abgetrennt werden. Die vorstehende Trenneinrichtung kann auch in anderer Weise ausgebildet sein.The blank 11 is separated from the subsequent material web 14 on the suction drum 17. In the present exemplary embodiment, an approximately radially directed cutting knife 18 is inserted approximately radially into the suction drum 17 such that the outer cutting edge projects beyond the outer surface of the suction drum 17. With the help of a rotating counter knife 19, the cut is made at a predetermined, repeating interface, so that cuts of the same length are always cut off. The above separating device can also be designed in a different way.

Die umlaufende Saugtrommel 17 ist mit radialen Saugbohrungen 20 ausgerüstet, die in mehreren, vorzugsweise drei im Abstand voneinanderliegenden Saugreihen 21, an der Mantelfläche der Saugtrommel 17 münden und bei entsprechender Beaufschlagung mit Saugluft die Materialbahn 14 bzw. den Zuschnitt 11 fixieren. Die Saugbohrungen 20 der drei Saugreihen 21 sind jeweils an gemeinsame, achsparallel verlaufende Saugkanäle 22 angeschlossen, die bis zum axialen Ende der Saugtrommel 17 führen und hier zeitweilig an eine Saugnut 23 anschließen, die in einer ortsfesten, neben der Saugtrommel 17 gelagerten Verteilerscheibe 24 gebildet ist. Die Saugnut 23 erstreckt sich über den gesamten, etwa halbkreisförmigen Förderbereich der Materialbahn 14 bzw. des Zuschnitts 11 auf der Saugtrommel 17. Zweckmäßigerweise ist im unteren Bereich eine von der Saugnut 23 getrennte Entlüftungsbohrung 25 in der Verteilerscheibe 24 gebildet. die infolge Entlüftung der Saugkanäle 22 und damit der Saugbohrungen 20 in diesem Bereich die Übergabe des Zuschnitts 11 an einen nachfolgenden Zuschnittsförderers 26 erleichtert.The circumferential suction drum 17 is equipped with radial suction bores 20, which open in several, preferably three suction rows 21 spaced apart from one another, on the lateral surface of the suction drum 17 and fix the material web 14 or the blank 11 when appropriately loaded with suction air. The suction bores 20 of the three suction rows 21 are each connected to common, axially parallel suction channels 22 which lead to the axial end of the suction drum 17 and here temporarily connect to a suction groove 23 which is formed in a stationary distributor disk 24 mounted next to the suction drum 17 . The suction groove 23 extends over the entire, approximately semicircular conveying area of the material web 14 or of the blank 11 on the suction drum 17. A ventilation hole 25 separate from the suction groove 23 is expediently formed in the distributor disk 24 in the lower area. which facilitates the transfer of the blank 11 to a subsequent blank conveyor 26 as a result of venting the suction channels 22 and thus the suction bores 20 in this area.

Durch diesen Zuschnittsförderer 26 wird der Zuschnitt 11 geradlinig, nämlich in vertikaler Ebene, transportiert. Zu diesem Zweck bestreht der Zuschnittsförderer 26 aus zwei im Abstand voneinander angeordneten Lochbändern 27 und 28. Diese werden über obere und untere Umlenkwalzen 29 und 30 geführt. Die Anordnung ist im vorliegenden Falle so getroffen, daß die Umlenkwalzen 29 und 30 etwa mit gleichen Abständen zu beiden Seiten, nämlich oberhalb und unterhalb, der Packungsbahn 12 angeordnet sind.This blank conveyor 26 transports the blank 11 in a straight line, namely in the vertical plane. For this purpose, the blanking conveyor 26 rotates from two perforated belts 27 and 28 arranged at a distance from one another. These are guided over upper and lower deflection rollers 29 and 30. In the present case, the arrangement is such that the deflecting rollers 29 and 30 are arranged at approximately equal intervals on both sides, namely above and below, the packing web 12.

Die Lochbänder 27, 28 sind im Bereich eines Fördertrums 31 mit Saugluft beaufschlagt, und zwar entweder durch einzelne, langgestreckte Saugkammern 32 und 33 für jeden Fördertrum 31 oder durch einen gemeinsamen Saugkasten 34 (Fig. 6, 7 und 8). Die Saugkammern 32, 33 sind auf der dem Fördertrum 31 zugekehrten Seite mit Öffnungen bzw. einem durchgehenden Saugschlitz 35 versehen, der durch den Fördertrum 31 der Lochbänder 27,28 überdeckt ist. Im Bereich des Saugschlitzes 35 sind die Lochbänder 27, 28 mit Sauglöchern 36 versehen, die das Wirksamwerden des Unterdrucks durch die Saugkammern 32, 33 bzw. den Saugkasten 34 auf der gegenüberliegenden Seite des Fördertrums 31 ermöglichen, so daß der Zuschnitt 11 während des Transportes an diesem fixiert ist.The perforated belts 27, 28 are acted upon by suction air in the region of a conveyor run 31, either through individual, elongated suction chambers 32 and 33 for each conveyor run 31 or through a common suction box 34 (FIGS. 6, 7 and 8). The suction chambers 32, 33 are provided on the side facing the conveyor run 31 with openings or a continuous suction slot 35 which is covered by the conveyor run 31 of the perforated belts 27, 28. In the area of the suction slot 35, the perforated belts 27, 28 are provided with suction holes 36, which enable the negative pressure through the suction chambers 32, 33 or the suction box 34 to take effect on the opposite side of the conveying strand 31, so that the blank 11 comes on during transport this is fixed.

Wie insbesondere aus Fig. 4 ersichtlich, sind bei diesem Ausführungsbeispiel die Saugkammern 32 und 33 in aufrechten Tragelementen 37 gebildet, dazwischen denen eine Ausnehmung 38 für den Durchschub derZigaretten-Packung 10 gebildet ist. Bei dieser Durchschubbewegung wird der Zuschnitt 11 durch die Zigaretten-Packung 10 von den Fördertrums 31 der Lochbänder 27, 28 abgezogen.As can be seen in particular from FIG. 4, at In this embodiment, the suction chambers 32 and 33 are formed in upright support elements 37, between which a recess 38 is formed for the passage of the cigarette pack 10. During this push-through movement, the blank 11 is pulled through the cigarette pack 10 from the conveyor runs 31 of the perforated belts 27, 28.

Die Lochbänder 27, 28 laufen in rinnenartige. Vertiefungen 39 der Saugkammern 32, 33 bzw. des Saugkastens 34. Die schmalen Vertiefungen 39 sind so bemessen, daß die darin laufenden Lochbänder 27, 28 mit der dem Zuschnitt 11 zugekehrten Anlagefläche 40 etwa bündig abschließen. Die Sauglöcher 36 in den Lochbändern 27, 28 und die Saugschlitze 35 für die Saugkammern 32, 33 sind in bezug auf die Längsmittelebenen dieser Teile nach innen versetzt angeordnet.The perforated strips 27, 28 run in trough-like. Recesses 39 of the suction chambers 32, 33 and the suction box 34. The narrow depressions 39 are dimensioned such that the perforated strips 27, 28 running therein are approximately flush with the contact surface 40 facing the blank 11. The suction holes 36 in the perforated bands 27, 28 and the suction slots 35 for the suction chambers 32, 33 are arranged offset inwards with respect to the longitudinal center planes of these parts.

Die Lochbänder 27, 28 sind auf der den Umlenkwalzen 29 und 30 zugekehrten, inneren Seite mit quergerichteten, rippenartigen Erhöhungen 41 versehen, durch die Lochbänder 27, 28 wie Zahnriemen ausgebildet werden. Mindestens die obere Umlenkwalze 29 ist mit entsprechenden Vertiefungen 42 ausgerüstet, in die die Erhöhungen 41 formschlüssig eintreten. Dadurch ist eine exakte, gegenüber den Umlenkwalzen 29, 30 schlupffreie Bewegung der Lochbänder 27, 28 gewährleistet. Die Vertiefungen 42 werden im Bereich von Eindrehungen 43 der Umlenkwalzen 29, 30 gebildet. Diese Eindrehungen 43 bzw. flache Nuten sind so ausgebildet, daß die Lochbänder 27,28 passend in diesen Aufnahme finden und im wesentlichen bündig mit der Mantelfläche mindestens der Umlenkwalze 29 abschließen. Zwischen je zwei Erhöhungen 41 ist ein Saugloch 36 angeordnet.The perforated belts 27, 28 are provided on the inner side facing the deflecting rollers 29 and 30 with transverse, rib-like elevations 41, through which perforated belts 27, 28 are formed like toothed belts. At least the upper deflection roller 29 is equipped with corresponding recesses 42, into which the elevations 41 enter in a form-fitting manner. This ensures an exact, slip-free movement of the perforated belts 27, 28 with respect to the deflection rollers 29, 30. The depressions 42 are formed in the region of recesses 43 of the deflecting rollers 29, 30. These recesses 43 or flat grooves are designed so that the perforated strips 27, 28 fit into this receptacle and are essentially flush with the lateral surface of at least the deflecting roller 29. A suction hole 36 is arranged between each two elevations 41.

Die vorliegenden Ausführungsbeispiele sind so ausgebildet, daß von der Übernahme der Materialbahn 14 durch die Saugtrommel 17 bis zur Abgabe des Zuschnitts 11 an die Zigaretten-Packung eine fortlaufende, ununterbrochene Fixierung der Materialbahn 14 und des Zuschnitts 11 durch Saugluft an den beteiligten Förderorganen gewährleistet ist. Die Übergabe der auf der Saugtrommel 17 gebildeten Zuschnitte 11 an den Zuschnittförderer 26 ist dabei in besonderer Weise gelöst.The present exemplary embodiments are designed in such a way that a continuous, uninterrupted fixation of the material web 14 and the product blank 11 is ensured by suction air at the conveying members involved, from the takeover of the material web 14 by the suction drum 17 to the delivery of the blank 11 to the cigarette pack. The transfer of the blanks 11 formed on the suction drum 17 to the blank conveyor 26 is achieved in a special way.

Bei dem Ausführungsbeispiel gemäß Fig. 1ff ist die obere Umlenkwalze 29 des Zuschnittsförderers 26 im Bereich der Mantelfläche mit Saugluft beaufschlagt, und zwar mindestens in einem der Förderung des Zuschnitts 11 dienenden Umfangsbereich. Vorzugsweise wird dabei die Saugluft über die Lochbänder 27, 28 an den Zuschnitt 11 herangeführt, so daß Transport des Zuschnitts 11 im Bereich der Umlenkwalze 29 bereits maßgeblich durch die Lochbänder 27, 28 erfolgt.In the exemplary embodiment according to FIG. 1ff, the upper deflection roller 29 of the blank conveyor 26 is acted upon by suction air in the region of the lateral surface, at least in a circumferential region serving to convey the blank 11. Preferably, the suction air is fed to the blank 11 via the perforated belts 27, 28, so that the transport of the blank 11 in the region of the deflecting roller 29 already takes place decisively through the perforated belts 27, 28.

Bei dem gezeigten Ausführungsbeispiel besteht die Umlenkwalze 29 aus einem Hohlzylinder 44, der drehbar auf einer feststehenden Tragachse 45 gelagert ist. Diese hat zugleich die Aufgabe der Unterdruckversorgung der Umlenkwalze 29. Der Hohlzylinder 44 ist mit radialgerichteten Saugbohrungen 46 ausgerüstet, die jeweils im Bereich der Sauglöcher 36 der Lochbänder 27, 28 an der Mantelfläche des Hohlzylinders 44 münden. Die Saugbohrungen 46 sind mit einem Unterdrucksystem der Tragachse 45 verbunden, nämlich mit einer im Bereich der Saugbohrungen 46 sich in Umfangsrichtung erstreckenden Segmentnut 47. Diese ist so angeordnet und bemessen, daß die Saugbohrung 46 während des Transportbereichs für den Zuschnitt 11 an die Segmentnut 47 angeschlossen sind. Diese wiederum ist über eine Radialbohrung 48 mit einer in Axialrichtung geführten Zentralbohrung 49 der Tragachse 45 verbunden. Durch Anschluß derselben an eine Unterdruckquelle ist demnach die Segmentnut 47 ständig mit Saugluft beaufschlagt. Die Übernahme des Zuschnitts 11 durch die Umlenkwalze 29 findet im oberen Bereich derselben bei nächster Nachbarschaft der Saugtrommel 17 statt. Die Förderung auf der Umlenkwalze 29 erstreckt sich etwa längs eines Viertelkreises.In the embodiment shown, the deflection roller 29 consists of a hollow cylinder 44 which is rotatably mounted on a fixed support shaft 45. This also has the task of supplying the deflection roller 29 with vacuum. The hollow cylinder 44 is equipped with radially directed suction bores 46 which each open in the area of the suction holes 36 of the perforated strips 27, 28 on the lateral surface of the hollow cylinder 44. The suction bores 46 are connected to a vacuum system of the supporting axis 45, namely with a segment groove 47 which extends in the circumferential direction in the region of the suction bores 46. This is arranged and dimensioned such that the suction bore 46 is connected to the segment groove 47 during the transport area for the blank 11 are. This in turn is connected via a radial bore 48 to a central bore 49 of the support shaft 45 which is guided in the axial direction. By connecting the same to a vacuum source, the segment groove 47 is therefore constantly subjected to suction air. The takeover of the blank 11 by the deflecting roller 29 takes place in the upper region thereof in the immediate vicinity of the suction drum 17. The conveyance on the deflecting roller 29 extends approximately along a quarter circle.

Die insoweit beschriebene Ausführung der Transportvorrichtung ermöglicht eine günstige Anordnung der Förderorgane, derart, daß Materialbahn und Zuschnitte bis zur Aufnahme durch die Lochbänder auf bogenförmigen, aneinander anschließenden Bahnen transportiert werden. Zu diesem Zweck sind bei den Ausführungsbeispielen der Fig. 1 bis 8 Umlenkwalze 29, Saugtrommel 17 und Zugwalze 16 in einer gemeinsamen Achsenebene übereinander angeordnet. Dadurch ist auch ein günstiger Synchronantrieb dieser Förderorgane möglich, wie insbesondere aus Fig. 5 ersichtlich. Saugtrommel 17 und Umlenkwalze 29 stehen über Zahnräder 50, 51 unmittelbar in betrieblichem Eingriff. Ein weiteres Zahnrad 52 dient dem Antrieb derZugwalze 16. Die Saugtrommel 17 ist auf einer durchgehenden Achse 53 an beiden Enden gelagert. Die Tragachse 45 der Umlenkwalze 29 ist hier einseitig gelagert.The design of the transport device described so far enables a favorable arrangement of the conveying members in such a way that the material web and blanks are transported on arched, adjoining webs until they are received by the perforated belts. For this purpose, in the exemplary embodiments in FIGS. 1 to 8, deflection roller 29, suction drum 17 and pull roller 16 are arranged one above the other in a common axis plane. As a result, a favorable synchronous drive of these conveying members is also possible, as can be seen in particular from FIG. Suction drum 17 and deflection roller 29 are directly in operational engagement via gears 50, 51. Another gear 52 drives the pull roller 16. The suction drum 17 is supported on a continuous axis 53 at both ends. The support axis 45 of the deflection roller 29 is supported on one side here.

Das Ausführungsbeispiel gemäß Fig. 6 bis 8 ist prinzipiell in gleicher Weise ausgebildet wie das gemäß Fig. 1 bis 6. Die Fixierung des Zuschnitts 11 auf der oberen Umlenkwalze 29 mit Saugluft erfolgt hier in einer anderen Weise. Wie insbesondere aus Fig. 6 ersichtlich, ist der hier vorgesehene Saugkasten 34 in den Bereich der Umlenkwalze 29 hinein verlängert, und zwar durch an den Saugkasten 34 anschließende, schmale und kreisbogenförmig gestaltete Saugsegmente 54, 55. Diese sind hier als verhältnismäßig schmale, rinnenartige, nämlich im Querschnitt U-förmige Luftförderorgane ausgebildet. Die feststehenden Saugsegmente 54, 55 erstrecken sich in entsprechend ausgebildeten und dimensionierten Umfangsnuten 56 bzw. 57 der Umlenkwalze 29. Die Abmessungsdifferenzen sind so gewählt, daß die Umlenkwalze 29 relativ zu den Saugsegmenten 54, 55 frei drehbar ist, Die radial äußere Seite der Saugsegmente 54, 55 ist offen, bildet somit einen Saugschlitz 58.The exemplary embodiment according to FIGS. 6 to 8 is in principle designed in the same way as that according to FIGS. 1 to 6. The fixing of the blank 11 on the upper deflecting roller 29 with suction air takes place here in a different way. As can be seen in particular from FIG. 6, the suction box 34 provided here is extended into the region of the deflecting roller 29, specifically by means of narrow suction segments 54, 55 which are designed in the shape of a circular arc and adjoin the suction box 34. These are here as relatively narrow, channel-like, namely, U-shaped air conveying elements in cross section. The fixed suction segments 54, 55 extend in correspondingly designed and dimensioned circumferential grooves 56 and 57 of the deflecting roller 29. The dimensional differences are selected so that the deflecting roller 29 is freely rotatable relative to the suction segments 54, 55, the radially outer side of the suction segments 54 , 55 is open, thus forming a suction slot 58.

Bei dem Ausfürhrungsbeispiel gemäß Fig. 7 erstreckten sich die Saugelemente 54 unterhalb der Lochbänder 27, 28, nämlich im Bereich der Sauglöcher 36 derselben. Hier werden demnach - analog zu dem Ausführungsbeispiel gemäß Fig. 1 bis 5 - die Lochbänder 27, 28 auch im Bereich der Umlenkwalze 29 mit Saugluft beaufschlagt, so daß sie bereits hier ihre fördernde und fixierende Funktion in bezug auf den Zuschnitt erfüllen können.7, the suction elements 54 extend below the perforated strips 27, 28, namely in the area of the suction holes 36 thereof. Accordingly, analogously to the exemplary embodiment according to FIGS. 1 to 5, the perforated belts 27, 28 are also acted upon by suction air in the region of the deflecting roller 29, so that they can already fulfill their promoting and fixing function with respect to the cut here.

Bei dem Ausführungsbeispiel gemäß Fig. 8 werden Fixieren des Zuschnitts und Fördern desselben im Bereich der Umlenkwalze 29 voneinander getrennt. Die Saugelemente 55 sind hiergegenüberden Lochbändern 27, 28 seitlich, nämlich nach innen, versetztangeordnet. Die Saugsegmente 55 schließen zu diesem Zweck im wesentlichen bündig mit der Mantelfläche der Umlenkwalze 29 ab, so daß die Saugschlitze 58 hier unmittelbar auf den Zuschnitt 11 einwirken können.In the exemplary embodiment according to FIG. 8, the blank is fixed and conveyed in the region of the deflecting roller 29. In contrast, the suction elements 55 are offset laterally, namely inwards, relative to the perforated bands 27, 28. For this purpose, the suction segments 55 are essentially flush with the lateral surface of the deflecting roller 29, so that the suction slots 58 can act directly on the blank 11 here.

Im übrigen stehen die Förderorgane 16, 17. 29 hier in gleicher bzw. ähnlicher Relativstellung zueinander wie bei dem vorhergehend erläuterten Ausführungsbeispiel. Der Saugkasten 34 ist analog zu den Saugkammern 32, 33 in bezug auf die Führung der Lochbänder 27, 28 ausgebildet.Otherwise, the conveying members 16, 17, 29 are here in the same or similar relative position to one another as in the previously explained exemplary embodiment. The suction box 34 is designed analogously to the suction chambers 32, 33 with respect to the guidance of the perforated strips 27, 28.

Bezugszeichenliste:Reference symbol list:

  • 10 Zigaretten-Packung10 pack of cigarettes
  • 11 Zuschnitt11 cutting
  • 12 Packungsbahn12 packing lanes
  • 13 Faltrevolver13 folding turret
  • 14 Materialbahn14 material web
  • 15 Zugwalzen15 pull rollers
  • 17 Saugtrommel17 suction drum
  • 18 Trennmesser18 cutting knife
  • 19 Gegenmesser19 counter knife
  • 20 Saugbohrung20 suction hole
  • 21 Saugreihe21 suction row
  • 22 Saugkanal22 suction channel
  • 23 Saugnut23 suction groove
  • 24 Verteilerscheibe24 distributor disc
  • 25 Entlüftungsbohrung25 vent hole
  • 26 Zuschnittförderer26 blank conveyors
  • 27 Lochband27 perforated tape
  • 28 Lochband28 perforated tape
  • 29 Umlenkwalze29 deflection roller
  • 30 Umlenkwalze30 deflection roller
  • 31 Fördertrum31 funding strand
  • 32 Saugkammer32 suction chamber
  • 33 Saugkammer33 suction chamber
  • 34 Saugkasten34 suction box
  • 35 Saugschlitz35 suction slot
  • 36 Saugloch36 suction hole
  • 37 Tragelement37 support element
  • 38 Ausnehmung38 recess
  • 39 Vertiefung39 deepening
  • 40 Anlagefläche40 contact surface
  • 41 Erhöhung41 increase
  • 42 Vertiefung42 deepening
  • 43 Eindrehung43 screwing
  • 44 Hohlzylinder44 hollow cylinders
  • 45 Tragachse45 support axis
  • 46 Saugbohrung46 suction hole
  • 47 Segmentnut47 segment groove
  • 48 Radialbohrung48 radial bore
  • 49 Zentralbohrung49 central bore
  • 50 Zahnrad50 gear
  • 51 Zahnrad51 gear
  • 52 Zahnrad52 gear
  • 53 Achse53 axis
  • 54 Saugsegment54 suction segment
  • 55 Saugsegment55 suction segment
  • 56 Umfangsnut56 circumferential groove
  • 57 Umfangsnut57 circumferential groove
  • 58 Saugschlitz58 suction slot

Claims (9)

1. Packaging apparatus for producing blanks (11) by cutting a material web (14) and supplying the same to a packaging station by means of a blank conveyor (26) which comprises rotating lateral upright apertured belts (27, 28) having a conveyor belt section (31) subject to negative pressure by rearwardly arranged suction chambers (32, 33), for the linear transport of blanks (11), and which is preceded by a suction drum (17) in the region of which the blanks (11) can be cut from the material web (14), characterized by the following features:
a. the blanks (11) can be supplied directly to the apertured belts (27, 28) of the blank conveyor (26) by the suction drum (17),
b. the suction drum (17) in the region of an (upper) guide roller (29) for the apertured belts (27, 28) lies thereagainst such that the blanks (11) can be supplied to the apertured belts (27, 28) in a peripheral region of the guide roller (29) which can be acted upon by suction air,
c. the guide roller (29) for the apertured belts (27, 28) is acted upon by suction air by way of radial suction bores (46) at least in a peripheral region serving for the transport of the blank (11),
d. the suction bores (46) are acted upon by suction air by way of a preferably axially running central bore (49) in the guide roller (29).
2. Apparatus according to Claim 1, characterized in that the suction effect (suction air) of the suction drum (17) in the region of the transfer of the blank (11) to the blank conveyor (26) can be switched away, in particular by a venting bore (25) of the suction drum (17) arranged in this region.
3. Apparatus according to Claim 1, characterized in that the suction bores (46) are connected only in a peripheral region of the guide roller (29) serving for the transport of the blank (11) to a negative pressure source, in particular to the central bore (49).
4. Apparatus according to Claim 1 and one or more of the further claims, characterized in that the guide roller (29) comprises a hollow cylinder (44) which with the radial suction bores (46) is rotatably mounted on a fixed support shaft (45) in which the central bore (49) is guided.
5. Apparatus according to Claim 4, characterized in that the support shaft (45) is provided in the suction region with an outwardly open segmental groove (47) which extends in the peripheral direction of the support shaft (45) and to which on the one hand the suction bores (46) of the rotating hollow cylinder (44) are connectable and to which on the other hand the central bore is connected by way of a radial bore (48).
6. Packaging apparatus for producing blanks (11) by cutting a material web (14) and supplying the same to a packaging station by means of a blank conveyor (26) which comprises rotating lateral upright apertured belts (27, 28) having a conveyor belt section (31) subject to negative pressure by rearwardly arranged suction chambers (32, 33), for the linear transport of blanks (11), and which is preceded by a suction drum (17) in the region of which the blanks (11) can be cut from the material web (14), characterized by the following features:
a. the blanks (11) can be supplied directly to the apertured belts (27, 28) of the blank conveyor (26) by the suction drum (17),
b. the suction drum (17) in the region of an (upper) guide roller (29) for the apertured belts (27, 28) lies thereagainst such that the blanks (11) can be supplied to the apertured belts (27, 28) in a peripheral region of the guide roller (29) which can be acted upon by suction air,
c. in the region of the upper guide roller (29) there are provided, extending in the peripheral direction of the guide roller (29), two fixed suction segments (54, 55), which are totally or partially open on the radially outwardly pointing side,
d. a peripheral region of the guide roller (29) serving for the transport of the blank (11) is acted upon by suction air by the suction segments (54, 55),
e. the suction segments (54, 55) extend in a peripheral groove (56, 57) running in the peripheral direction of the guide roller (29) and end substantially flush with the peripheral surface of the guide roller (29),
f. the suction segments (54, 55) are connected to the associated suction chambers (32, 33) or to a common suction box (34), or part thereof, that is to say extension pieces.
7. Apparatus according to Claim 6, characterized in that the suction segments (54, 55) are constructed to be U-shaped in cross-section.
8. Apparatus according to Claim 1 and one or more of the further claims, characterized in that the suction drum (17) is arranged directly above the guide roller (29) and a tension roller (16) of a tension roller pair (15,16) is arranged directly above the suction drum (17), preferably in a common vertical axial plane.
9. Apparatus according to Claim 1 and one or more of the further claims, characterized in that the apertured belts (27, 28) are constructed with rib- like projections (41) which engage in complementary recesses (42) of the guide rollers (29, 30) in form-fitting manner, in each case one suction aperture (36) being arranged between two successive projections (41).
EP82105631A 1981-08-11 1982-06-25 Packaging device for forming cut sheets and feeding the same to a packaging station Expired - Lifetime EP0071736B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3131687 1981-08-11
DE19813131687 DE3131687A1 (en) 1981-08-11 1981-08-11 "PACKAGING DEVICE FOR PRODUCING CUTS AND FEEDING THE SAME IN A PACKING STATION"

Publications (3)

Publication Number Publication Date
EP0071736A1 EP0071736A1 (en) 1983-02-16
EP0071736B1 EP0071736B1 (en) 1985-09-11
EP0071736B2 true EP0071736B2 (en) 1993-10-27

Family

ID=6139062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105631A Expired - Lifetime EP0071736B2 (en) 1981-08-11 1982-06-25 Packaging device for forming cut sheets and feeding the same to a packaging station

Country Status (6)

Country Link
US (1) US4495746A (en)
EP (1) EP0071736B2 (en)
JP (1) JPS5841018A (en)
BR (1) BR8204699A (en)
CA (1) CA1188340A (en)
DE (2) DE3131687A1 (en)

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IT1257834B (en) * 1992-06-17 1996-02-13 Gd Spa METHOD AND DEVICE FOR FEEDING STICKS OF WRAPPING MATERIALS IN A CIGARETTE PACKING MACHINE
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Also Published As

Publication number Publication date
US4495746A (en) 1985-01-29
JPS5841018A (en) 1983-03-10
EP0071736A1 (en) 1983-02-16
DE3131687A1 (en) 1983-03-03
BR8204699A (en) 1983-08-02
JPH0223412B2 (en) 1990-05-24
CA1188340A (en) 1985-06-04
DE3266185D1 (en) 1985-10-17
EP0071736B1 (en) 1985-09-11

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